Excerpt from An Elementary Treatise on Plane Trigonometry: With a Numerous Collection of Cramples, Chiefly Designed for the Use of Schools and Beginners The chief alterations in this Edition are the addition of Articles 63, bis, and 73 - 75, and of the easy series Examples marked A. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.